triphenylguanidine

noun1

1. •
   An aniline derivative, H₅C₆N:C(NHC₆H₅)₂, that acts as a slow accelerator of vulcanization.

   • Phenyl mustard oil […] is obtained by boiling sulphocarbanilide with concentrated hydrochloric acid, some triphenylguanidine being formed at the same time. — 1911